The seismic activity that started early July 6, 2019 at the southern margin of Coso Volcanic Field in Inyo County, California continues at a rate of about 600 M1.0 or greater earthquakes per day. The activity was triggered by a magnitude M5.4 earthquake at 04:19...
July 10, 2019
The USGS has issued its Aftershock Forecast following M7.1 Ridgecrest, CA earthquake at 03:19 UTC on July 6, 2019. An updated version issued 02:55 UTC, July 7 is posted below and marked Update. Over the next 1 week, there is is a 3 % chance of one or more...
July 06, 2019
A very strong and shallow earthquake registered by the USGS as M7.1 hit Southern California at 03:19 UTC on July 6, 2019 (20:19 local time, July 5). The agency is reporting a depth of 17 km (10.5 miles). EMSC is reporting M7.1 at a depth of 10 km (6.2 miles). This...
July 06, 2019
A strong and shallow earthquake registered by the USGS as M6.4 hit Central California at 17:33 UTC (10:33 local time) on July 4, 2019. The agency is reporting a depth of 8.7 km (5.4 miles). EMSC is reporting M6.4 at a depth of 2 km (1.2 miles). At least 160...
July 04, 2019
Sky watchers in the San Francisco Bay Area, California witnessed an extraordinary display of noctilucent clouds (NLCs) on June 9, 2019. As these clouds are typically confined to latitudes above +55 N and San Francisco is at +38 N, this marks one of the...
June 10, 2019
Tar and what appears to be natural gas has begun to ooze onto the sidewalk on the Miracle Mile near the La Brea Tar Pits, Los Angeles, California on Saturday, June 8, 2019. The La Brea Tar Pits are a group of tar pits around which Hancock Park was formed in urban...
June 09, 2019
A rare May storm swept through Southern California on May 22 and 23, 2019, bringing heavy rain, hail and even snow to parts of the region. The worst-hit were Inland Empire and eastern central area of Orange County where heavy rain was reported, according to ABC7....
May 23, 2019
An unusually strong storm for the time of year is affecting the Western U.S., dumping heavy rain and higher elevation snow. Many cities could double or triple their normal precipitation for May, normally a dry month, in just 24 to 48 hours, meteorologists warn. This...
May 16, 2019
A potent weather system will bring rain, locally, heavy with higher elevation snow to portions of California, southwestern Oregon, and the Northern Rockies. As much as 60 cm (2 feet) of snow may blanket the California mountains above 1.8 km (6 000 feet). Rain and...
May 15, 2019
Five minor to moderately strong earthquakes were registered at Mendocino Triple Junction, west of Eureka, California at a depth of 10 km (6.2 miles) on May 5, 2019. The strongest was M4.8 detected at 06:46 UTC on May 5. The sequence started with M3.1 at 04:17 UTC,...
May 06, 2019
Caltech seismologists have identified nearly two million previously unidentified tiny earthquakes that occurred between 2008 and 2017 in Southern California, expanding the region's earthquake catalog by a factor of 10. Their efforts, published online by the...
April 23, 2019
A powerful dust devil formed in the city of Fairfield, Solano County, California on April 9, 2019 and was captured on video. The twister was strong enough to rip off part of the roof of one building and send debris flying everywhere. Dust devils are small but...
April 11, 2019
"With full reservoirs and a dense snowpack, this year is practically a California water supply dream," California DWR Director Karla Nemeth said April 2, 2019, after latest Sierra snowpack measurement. California state officials made their monthly snowpack...
April 03, 2019
An unusually intense thunderstorm brought by yet another atmospheric river hit Southern California on Tuesday night, March 5, 2019, stretching from southern Kern County past the Channel Islands. Shortly after 20:00 PST, the National Weather Service recorded 1 489...
March 07, 2019
Four days of heavy snowfall came to an end on February 28, 2019, leaving statewide snowpack at 153% of normal. Snow depths and water content equaled California's all-time record level for February. While most of the state's reservoirs are at or above 100% of...
March 05, 2019
Russian River at Guerneville crested with a preliminary height of 13.83 m (45.38 feet) at 22:00 PST, Wednesday, February 27, 2019. Major flooding continued Thursday morning but the river is expected to slowly recede through the day and fall below flood stage of...
February 28, 2019
A slow-moving storm brought widespread heavy precipitation across central to northern California and very heavy snow through the Sierra on February 26 and 27, 2019. The County of Sonoma has issued mandatory evacuations to residents living near the Russian River....
February 27, 2019
February 2019 has been a very cold month across all of southwestern California. With just 4 days remaining in the month, February 2019 ranks as the coldest February in Downtown Los Angeles since 1962. In Downtown Los Angeles, the average daily mean temperature for...
February 25, 2019
A very cold upper low pressure system tracked across California on February 21, 2019, bringing scattered showers, with snow showers down to extremely low levels, and isolated thunderstorms with hail. Snow showers were reported by spotters in Thousand Oaks, Simi...
February 23, 2019
A winter storm named Quiana by The Weather Channel dumped heavy snowfall on parts of the Southwest and brought rare wintry precipitation to parts of Los Angeles County. Snow fell on Las Vegas for the 5th time this month on February 21 - this was the first time since...
February 22, 2019
Los Angeles, California received 250.19 mm (9.85 inches) of rain so far this year, more than it received during the entire 2018 - 198.12 mm (7.80 inches). While Los Angeles sees about 355.6 mm (14 inches) of rain in a full year, this year's 250 mm probably says...
February 18, 2019
Atmospheric river dumped heavy rain and snow on parts of California on February 13 and 14, 2019, causing floods and landslides. Two homes was destroyed early February 14 and one woman hospitalized. Heavy rain will continue affecting parts of the state into this...
February 14, 2019
The weather system on the West coast will interact with a deep plume of tropical moisture from near Hawaii bringing heavy rain along the central and southern Californian coast, which may produce flash flooding, and possibly debris flows near recent wildfire burn...
February 13, 2019
A powerful Pacific storm hit southern California on February 2 and 3, 2019, bringing heavy rain and strong winds. During the peak of the storm, coastal and valley areas received up to 25 mm (1 inch) of rain per hour. Key highways were shut down as mud and water...
February 04, 2019
A series of Pacific storm systems will bring several rounds of heavy rainfall, mountain snow, strong winds, and burn scar flooding, especially in California. Another significant winter storm could bring heavy snow, ice, and hazardous travel from the Plains to the...
January 15, 2019
A potent winter storm brought heavy rain, floods, mudslides and mountain snow to southern California on December 6 and 7, 2018. The storm will track across the Southern Plains to the Southeast Coast from Friday through Sunday, December 9. Ice and snow will...
December 07, 2018
A dynamic Pacific storm is delivering heavy to excessive rainfall, mountain snow, gusty winds and high surf to California. This system will evolve into a major multi-faceted storm Friday through the weekend, with severe weather in the South and heavy snow in parts...
November 30, 2018
Flash Flood Watches are in effect in Northern California ahead of rain expected to develop along the US West Coast Wednesday morning, November 21, 2018. After that, a parade of storms is expected to march through the weekend. Meanwhile, Air Quality Alerts are...
November 20, 2018
The death toll from the Camp Fire in California's Butte County jumped to 76 on November 18, 2018. 3 people were killed in Woolsey Fire, raising the death toll from current wildfires in the state to 79. The Camp Fire has so far burned 60 000 hectares (148 000...
November 17, 2018
Camp Fire has exploded in size since November 8, 2018, and is now the deadliest and most destructive individual wildfire in California history. On November 12, the death toll climbed to 31 and there are still 121 people missing. As of 19:36 PST, November 11 (03:36...
November 12, 2018
A destructive wildfire is rapidly growing in California's Butte County since it started early November 8, forcing tens of thousands of people to evacuate their homes. The fire grew to 8 000 ha (20 000 acres) before the end of the day and is still 0% contained....
November 09, 2018
One of the mud geysers near the town of Niland, California's Imperial County, is growing rapidly, threatening nearby railroad track and state highway which may soon have to be closed. This area consists of a group of volcanoes in the Niland Field, known as...
November 02, 2018
Delta Fire began 3.2 km (2 miles) north of Lakehead in Shasta County, California on Wednesday, September 5, 2018. Forest Service classified the cause as 'human.' The fire has since rapidly grown to 8 900 hectares (22 000 acres) and is 0% contained as of...
September 07, 2018
The Mendocino Fire Complex in California exploded in size over the weekend and is now the second largest wildfire in the history of California. It's on the pace to become the largest wildfire in state's history. The fire has consumed 110 747 hectares (273...
August 06, 2018
California Governor Jerry Brown issued emergency proclamations for Riverside, Mariposa, Shasta, Lake, Mendocino and Napa counties over the past couple of days after raging wildfires claimed lives of 8 people, forced more than 37 000 to evacuate and destroyed...
July 30, 2018
California Governor Edmund G. Brown Jr. issued an emergency proclamation for Lake County on June 25, 2018, due to the effects of the Pawnee Fire, which has destroyed homes, threatened critical infrastructure, caused power outages and the evacuation of residents. A...
June 26, 2018
A strong earthquake measuring M5.3 on the Richter scale hit near the coast of Los Angeles, California at 19:29 UTC (12:29 PDT) on April 5, 2018. The USGS is reporting a depth of 16.8 km (10.4 miles). The epicenter was located 28 km (17.4 miles) SW of Santa Cruz Is....
April 05, 2018
Two people are missing in California's Mariposa County after heavy rain caused dangerous flash floods rushing through the region. Police said the two persons, one male and one female, went missing in two separate incidents after a three-day storm dumped heavy...
March 26, 2018
An atmospheric river event is expected to plummet Southern California bringing heavy rain and snow into the area. Flash flood warnings have been issued in parts of Southern California, with potentially very dangerous debris flows expected as the strongest storm of...
March 20, 2018
A strong and shallow earthquake registered by the USGS as M5.8 hit off the coast of Northern California at 16:39 UTC (08:39 PST) on January 25, 2018. The agency is reporting a depth of 5 km (3.1 miles). EMSC is reporting M5.8 at a depth of 2 km (1.2 miles). The...
January 25, 2018